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Valentina Links on Diagrams

Foreign Key Link

On the following picture you can see how Valentina Studio displays a Foreign Key link. You could see similar diagrams in e.g. MS SQL or MS Access.

Note, that line of the link connects two fields. Line starts at a MANY table field, which is a foreign key, and ends at a ONE table field, which is the primary key.

ObjectPtr Link

On the following picture you can see how Valentina Studio displays an ObjectPtr link.

Note, that link starts at a MANY table field, which is ObjectPtr, and ends at the TITLE of the ONE table. This is because there is no primary key field in the ONE table (RecID pseudo-field is used). So we can move line of link only to the TITLE of object. This underlines ObjectPtr-link nature. This is pointer on Object (i.e. Table).

BinaryLink

On the following picture you can see how Valentina Studio displays a BinaryLink.

Note, that link starts at the TITLE of the MANY table, and ends at the TITLE of the ONE table. This underlines that BinaryLink do not depends on any fields of tables.